HTML Questions

The <var> tag is specifically meant to represent a variable within programming code. While you could use <code> for the entire code snippet, using <var> for variables makes the code more readable and meaningful.

Data stored in sessionStorage persists only for the duration of the user's session in the browser. It is deleted when the user closes the tab or window.

The 'pattern' attribute, used with input elements, allows you to specify a regular expression. User input must match this pattern for the input to be considered valid.

The key difference lies in how they handle the embedded content. An <iframe> creates a completely separate browsing context, like a mini-window within your webpage. In contrast, <object> embeds content as if it were part of your webpage, affecting things like scripting and layout.

SVG stands for Scalable Vector Graphics. It's an XML-based language used for describing two-dimensional vector graphics, which remain sharp and clear at any size.

Web Workers allow you to run JavaScript code in a separate thread, preventing long-running scripts from blocking the main user interface thread and improving responsiveness.

The hidden attribute controls an element's visibility. When present, the element is not rendered on the page, but it still exists in the document structure.

The <audio> element in HTML5 enables the embedding of sound content directly into webpages. It supports various audio formats and provides controls for playback.

The <canvas> element provides a rectangular area on a webpage where developers can use JavaScript to draw and manipulate graphics dynamically. This enables the creation of animations, games, visualizations, and more.

The <blockquote> tag is specifically designed for long quotations. Browsers often indent content within <blockquote> tags to visually set them apart from surrounding text.

The <main> element is specifically designed to represent the dominant content within the body of an HTML document. It's intended to enclose the content that's directly related to the central topic of the page.

The viewport meta tag controls how the webpage is displayed on different devices. It defines the width, initial zoom level, and other properties of the viewport, ensuring that the website is optimized for various screen sizes.

The 'url' input type designates a field intended for entering a web address. Browsers often provide validation and may adjust the keyboard layout for easier URL input.

The data-* attributes provide a way to embed custom data directly into HTML elements. These attributes can be easily accessed and manipulated using JavaScript.

The tabindex attribute specifies the tab order for an element. Elements with a positive tabindex value are focused in ascending order, followed by elements without a tabindex.